DESCRIPTION
3/4
λ
VHF antenna for base station service made of high quality materials to get the best perfor-
mance and the maximum efficiency. It is completely manufactured with aluminium tubes and
nylon for its great robustness and it is supplied with a solid steel bracket for an easy and safe
installation. Its Gamma Match feed makes it earthed for a perfect protection against the static
discharges. In the mentioned range of frequencies, adjustments are not required. Simple and
strong it is particurly recommended for a professional use.
SPECIFICATIONS
Electrical Data
Type
:
3/4
λ
Coax. J-Pole
Frequency Range @ SWR
≤
1.5 :
CX 140 U/N 140 - 144 MHz
:
CX 144 U/N 144 - 148 MHz
:
CX 148 U/N 148 - 152 MHz
:
CX 152 U/N 152 - 156 MHz
:
CX 156 U/N 156 - 160 MHz
:
CX 160 U/N 160 - 164 MHz
:
CX 164 U/N 164 - 168 MHz
:
CX 168 U/N 168 - 172 MHz
:
CX 172 U/N 172 - 176 MHz
Impedance
:
50
Ω
Unbalanced
Radiation (H-plane)
:
360
o
Omnidirectional
Radiation (E-plane)
:
Beamwidth at -3 dB = 68
o
Radiation angle deg.
:
0
o
Polarization
:
Vertical
Gain
:
2 dBd - 4.15 dBi
Bandwidth @ SWR 2.0
:
CX 140
≥
6.9 MHz, CX 144
≥
7.2 MHz, CX 148
≥
7.5 MHz
:
CX 152
≥
7.7 MHz, CX 156
≥
8.0 MHz, CX 160
≥
8.3 MHz
:
CX 164
≥
8.3 MHz, CX 168
≥
8.9 MHz, CX 172
≥
9.2 MHz
SWR @ res. freq.
:
≤
1.2
Max Power
:
250 Watts
Feed System / Position
:
Gamma Match / Base
Connector
:
CX series U: UHF-female
:
CX series N: N-female
Mechanical Data
Materials
:
Nylon, Brass, Steel, Aluminium
Wind Load / Resistance
:
51 N at 150 Km/h / 180 Km/h
Wind Surface
:
0.04 m
2
Height (approx.)
:
from 1370 mm to 1660 mm
Weight (approx.)
:
750 gr
Mounting Mast
:
∅
35-42 mm
ID062
MOUNTING INSTRUCTIONS
HI-QUALITY ANTENNAS MADE IN ITALY
HARDWARE PARTS LIST
Qty
Descriptions
n.2
U-bolts
n.4
M6 flat washer
n.4
M6 lock washer
n.4
M6 hex nut
Right mounting on mast
Wrong mounting on mast
